A master batch charging mechanism

Abstract

This utility model proposes a masterbatch loading mechanism, comprising: a shell with an internal cavity, in which a partition plate is fixed, dividing the cavity into a discharge chamber and an installation chamber; a discharge pipe fixed to the lower end of the shell, having a discharge channel communicating with the discharge chamber; a storage silo within the installation chamber, with a feed hopper on the top plate of the shell for conveying masterbatch into the storage silo, and a discharge port at the lower end of the storage silo; and a screw feeder mounted on the bottom plate of the shell, with its inlet located within the installation chamber and communicating with the discharge port of the storage silo; and its outlet located within the discharge chamber. In this design, the masterbatch flows out of the screw feeder at a very low velocity, effectively reducing wear from collisions between the masterbatch and the inner wall of the discharge chamber, thus reducing dust and improving safety.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment, specifically to a masterbatch loading mechanism. Background Technology

[0002] Masterbatch packaging process can generate a lot of dust, which can disperse in equipment or indoor spaces. Dust in the air can damage the human respiratory tract, and if the dust reaches the explosion limit, it can easily cause a safety accident. Therefore, it is necessary to strictly control the dust concentration in the air when packaging masterbatch.

[0003] Therefore, the technical problem that this application needs to solve is: how to reduce the dust generated by the masterbatch during the packaging process. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a masterbatch loading mechanism. In this solution, the masterbatch is fed into the discharge chamber via a screw feeder, and then flows through the discharge pipe into the storage space within the packaging bag, thus completing the masterbatch loading process. The screw feeder provides stable feeding, and the low velocity of the masterbatch flowing out from the screw feeder's outlet effectively reduces wear from collisions between the masterbatch and the inner wall of the discharge chamber, thereby reducing dust and improving safety.

[0005] Specifically, this utility model proposes a masterbatch loading mechanism, comprising:

[0006] The housing has an internal cavity, and a partition plate is fixed in the cavity, which divides the cavity into a discharge chamber and an installation chamber.

[0007] The discharge pipe is fixed to the lower end of the housing and has a discharge channel that communicates with the discharge chamber.

[0008] A storage bin is provided in the installation chamber. A feed hopper is provided on the top plate of the shell. The feed hopper is used to convey masterbatch into the storage bin. A discharge port is provided at the lower end of the storage bin.

[0009] A screw feeder is installed on the bottom plate of the housing, with its inlet end located in the installation chamber and communicating with the outlet of the storage silo; the outlet end of the screw feeder is located in the discharge chamber.

[0010] Preferably, the screw feeder includes a housing, screw blades, and a drive component. The housing has a conveying cavity, the screw blades are located in the conveying cavity, and a mounting shaft is fixed in the screw blades.

[0011] The drive component is installed in the mounting chamber, and the drive component has a rotatable output shaft, which is connected to the mounting shaft in a driving connection.

[0012] Preferably, the outlet direction of the screw feeder is upward.

[0013] Preferably, the storage bin is equipped with a buffer component to slow down the descent speed of the masterbatch.

[0014] Preferably, the buffer assembly includes a first inclined plate and a second inclined plate, with gaps left between the lower ends of the first inclined plate and the inner wall of the storage bin for the masterbatch to flow downwards;

[0015] The first inclined plate and the second inclined plate are inclined in opposite directions. The top of the first inclined plate is fixed to the side wall of one side of the storage silo, and the top of the second inclined plate is fixed to the side wall of the other side of the storage silo.

[0016] Preferably, there are multiple first inclined plates and multiple second inclined plates, and the first inclined plates and the second inclined plates are arranged in a cross pattern.

[0017] Preferably, the upper end of the shell is provided with an exhaust pipe that communicates with the discharge chamber, and a dust removal pump is installed in the exhaust pipe through a pipeline.

[0018] Preferably, the discharge pipe is equipped with a valve. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the masterbatch loading mechanism proposed in this embodiment;

[0021] Figure 2 This is a top view of the masterbatch loading mechanism proposed in this embodiment;

[0022] Figure 3 yes Figure 2 Cross-sectional view along the AA direction;

[0023] Figure 4 This is a schematic diagram of the internal structure of the screw feeder in this embodiment;

[0024] Figure 5 This is a schematic diagram of the installation structure of the circular baffle in this embodiment.

[0025] The reference numerals used in the attached figures are as follows:

[0026] 11-Shell; 12-Isolation plate; 13-Discharge chamber; 14-Installation chamber; 15-Discharge pipe; 16-Discharge channel; 17-Storage bin; 18-Feed hopper; 19-Discharge port; 20-Screw feeder; 21-Base plate; 22-Inlet end; 23-Outlet end; 24-Shell; 25-Screw blade; 26-Drive component; 27-Conveying chamber; 28-Output shaft; 29-Installation shaft; 30-First inclined plate; 31-Second inclined plate; 32-Exhaust pipe; 33-Circular baffle; 34-Rotating shaft; 35-Actuating rod; 36-Fixing block; 37-Magnet block. Detailed Implementation

[0027] The technical solutions of this application will be further described below with reference to specific embodiments, but this application is not limited to these embodiments.

[0028] like Figures 1 to 5 As shown, this embodiment proposes a masterbatch loading mechanism, including:

[0029] The housing 11 has an internal cavity, and a partition plate 12 is fixed in the cavity, which divides the cavity into a discharge chamber 13 and an installation chamber 14.

[0030] The discharge pipe 15 is fixed to the lower end of the housing 11, and the discharge pipe 15 has a discharge channel 16 that communicates with the discharge chamber 13.

[0031] Storage bin 17 is located in the installation chamber 14. A feed hopper 18 is fixed on the top plate of the shell 11. The feed hopper 18 is used to convey masterbatch into the storage bin 17. The lower end of the storage bin 17 is provided with a discharge port 19.

[0032] The screw feeder 20 is mounted on the bottom plate 21 of the housing 11, and the inlet end 22 of the screw feeder 20 is located in the mounting chamber 14, and the inlet end 22 of the screw feeder 20 communicates with the outlet 19 of the storage bin 17; the outlet end 23 of the screw feeder 20 is located in the discharge chamber 13.

[0033] The technical effect of this solution is that when the masterbatch is being loaded, the masterbatch is fed into the discharge chamber 13 by the screw feeder 20, and then the masterbatch flows into the storage space in the packaging bag through the discharge pipe 15, thus realizing the loading of the masterbatch.

[0034] The screw feeder 20 features stable feeding; compared to free fall, the flow velocity of the masterbatch from the outlet end 23 of the screw feeder 20 is very low. The screw feeder 20 uses a pushing method to slowly push out the masterbatch, which effectively reduces wear from collisions between the masterbatch and the inner wall of the discharge chamber 13, thus reducing dust and improving safety.

[0035] The screw feeder 20 is an existing device, typically quite large, mainly used for feeding materials to higher locations, offering advantages such as slow and stable feeding. However, a screw feeder 20 has never been used to control the material feeding speed in masterbatch packaging equipment. The screw feeder 20 used in this solution employs horizontal conveying and is significantly smaller in size compared to existing equipment, making it more adaptable to the installation environment.

[0036] In one embodiment of this invention, the screw feeder 20 includes a housing 24, screw blades 25, and a drive component 26. The housing 24 has a conveying cavity 27, the screw blades 25 are located in the conveying cavity 27, and a mounting shaft 29 is fixed in the screw blades 25.

[0037] The drive component 26 is installed in the mounting chamber 14, and the drive component 26 has a rotatable output shaft 28. The output shaft 28 of the drive component 26 is connected to the mounting shaft 29 in a transmission connection. Specifically, the output shaft 28 of the drive component 26 and the mounting shaft 29 are connected by a coupling.

[0038] The drive unit 26 is a combination of a motor and a reducer, or it can be a motor or a geared motor directly.

[0039] In this solution, when the output shaft 28 of the drive component 26 rotates, it will drive the spiral blade 25 to rotate, thereby realizing the conveying of masterbatch.

[0040] Furthermore, the drive component 26 is fixed to the base plate 21 by a pad.

[0041] In one embodiment of this invention, the outlet end 23 of the screw feeder 20 faces upwards. When the drive unit 26 stops working, the masterbatch in the screw feeder 20 can stop being discharged, which has the advantage of a small delay in masterbatch output.

[0042] As one embodiment of this invention, a buffer assembly is fixed in the storage bin 17 to slow down the descent speed of the masterbatch.

[0043] As one embodiment of this example, the buffer assembly includes a first inclined plate 30 and a second inclined plate 31. The lower ends of the first inclined plate 30 and the second inclined plate 31 are respectively provided with gaps between them and the inner wall of the storage bin 17 for the masterbatch to flow downward.

[0044] The first inclined plate 30 and the second inclined plate 31 have opposite inclination directions. The top end of the first inclined plate 30 is fixed to the side wall of one side of the storage bin 17, and the top end of the second inclined plate 31 is fixed to the side wall of the other side of the storage bin 17.

[0045] In one embodiment of this invention, there are multiple first inclined plates 30 and second inclined plates 31, and the first inclined plates 30 and second inclined plates 31 are arranged in a cross pattern.

[0046] The technical advantage of this solution is that by arranging multiple first inclined plates 30 and second inclined plates 31 in a cross manner, the masterbatch can fall more gently, effectively reducing dust generation.

[0047] As one embodiment of this invention, the upper end of the housing 11 is fixed with an exhaust pipe 32 that communicates with the discharge chamber 13, and a dust removal pump is installed on the exhaust pipe 32 through a pipeline.

[0048] The dust pump is used to promptly extract and discharge the flying dust in the discharge chamber 13 to avoid production safety problems caused by excessive dust concentration.

[0049] As one embodiment of this invention, the discharge pipe 15 is equipped with a valve.

[0050] The valve in this design includes a circular baffle 33. A rotating shaft 34 is rotatably mounted on the discharge pipe 15. One end of the rotating shaft 34 is fixed to the circular baffle 33, and the other end is fixed to an actuating rod 35. When the actuating rod 35 rotates, it drives the circular baffle 33 to rotate, thereby opening and closing the discharge pipe 15. A fixing block 36 is fixed to the outer circumference of the discharge pipe 15, and multiple magnet blocks 37 are fixed on the fixing block 36. The positions of the multiple magnet blocks 37 can be arranged according to the actual environment to attract the actuating rod 35 and prevent the actuating rod 35 from moving.

[0051] Furthermore, the discharge pipe 15 is provided with mounting holes for mounting the rotating shaft 34, wherein there are two rotating shafts 34, and the actuating rod 35 can be mounted on only one of the rotating shafts 34.

[0052] In order to improve the attraction between the toggle lever 35 and the magnet block 37, a magnet is also fixed on the toggle lever 35 to enhance the attraction to the magnet block 37.

[0053] To facilitate valve installation, the discharge pipe 15 in this design is a split type, consisting of two semi-circular pipes. These two semi-circular pipes can be connected by snap-fit, or the two semi-circular pipes can be clipped onto the rotating shafts 34 on both sides of the circular baffle 33 after the circular baffle 33 and rotating shaft 34 in the valve are welded together, and then welded together to form a circular discharge pipe 15.

[0054] Alternatively, other installation methods can be used to install the valve, such as providing threaded holes on the circumference of the circular baffle 33 and threading the end of the rotating shaft for tightening in the threaded holes of the circular baffle 33, thus enabling the circular baffle 33 to be installed from the outside.

[0055] In addition, other existing technologies can be used for the valves in this solution. In the field of conveying pellets, powders, or liquids, any valve that can cut off and open the conveying channel can be used on the discharge pipe 15 of this solution.

[0056] In addition, the drive unit 26 in this solution can be equipped with a separate switch to control the operation of the drive unit 26; or a micro switch can be set at the toggle lever 35. When the circular baffle 33 is in the vertical state, the toggle lever 35 just presses the trigger part of the micro switch, thereby forming a circuit path to make the drive unit 26 work.

[0057] It's important to note that this solution can function normally without a valve. If a separate switch controls the operation of the drive unit 26, when the switch is off, the screw feeder 20's outlet 23 faces upwards, resulting in minimal material conveying delay. In this case, only a very small amount of masterbatch will continue to fall and enter the packaging belt, preventing masterbatch overflow. Alternatively, for more precise masterbatch packaging, the drive unit 26 can be manually or automatically shut off in advance via the switch.

[0058] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A masterbatch loading mechanism, characterized in that, include: The housing (11) has a cavity inside, and a partition plate (12) is fixed in the cavity. The partition plate (12) divides the cavity into a discharge chamber (13) and an installation chamber (14). The discharge pipe (15) is fixed at the lower end of the housing (11) and has a discharge channel (16) that communicates with the discharge chamber (13). Storage bin (17), the storage bin (17) is located in the installation chamber (14), the top plate of the shell (11) is provided with a feed hopper (18), the feed hopper (18) is used to convey masterbatch into the storage bin (17), and the lower end of the storage bin (17) is provided with a discharge port (19). The screw feeder (20) is installed on the bottom plate (21) of the housing (11), and the inlet end (22) of the screw feeder (20) is located in the installation chamber (14), and the inlet end (22) of the screw feeder (20) is connected to the outlet (19) of the storage bin (17); the outlet end (23) of the screw feeder (20) is located in the discharge chamber (13).

2. The master batch charging mechanism according to claim 1, wherein The screw feeder (20) includes a housing (24), a screw blade (25) and a drive component (26). The housing (24) has a conveying chamber (27), the screw blade (25) is located in the conveying chamber (27), and an installation shaft (29) is fixed in the screw blade (25). The drive unit (26) is installed in the mounting chamber (14) and has a rotatable output shaft (28) that is connected to the mounting shaft (29).

3. The master batch charging mechanism according to claim 1, wherein The outlet end (23) of the screw feeder (20) faces upward.

4. The master batcher mechanism of claim 1, wherein, The storage bin (17) is equipped with a buffer assembly to slow down the descent speed of the masterbatch.

5. The master batch charging mechanism according to claim 4, wherein The buffer assembly includes a first inclined plate (30) and a second inclined plate (31). The lower ends of the first inclined plate (30) and the second inclined plate (31) are respectively provided with gaps between them and the inner wall of the storage bin (17) for the masterbatch to flow downward. The first inclined plate (30) and the second inclined plate (31) are inclined in opposite directions. The top of the first inclined plate (30) is fixed on the side wall of one side of the storage bin (17), and the top of the second inclined plate (31) is fixed on the side wall of the other side of the storage bin (17).

6. The master batch charging mechanism of claim 5, wherein, There are multiple first inclined plates (30) and second inclined plates (31), and the first inclined plates (30) and second inclined plates (31) are arranged in a cross pattern.

7. The master batcher mechanism of claim 1, wherein, The upper end of the housing (11) is provided with an exhaust pipe (32) that communicates with the discharge chamber (13), and a dust removal pump is installed in the exhaust pipe (32) through a pipeline.

8. The master batcher mechanism of claim 1, wherein, The discharge pipe (15) is equipped with a valve.

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